Spool carrier for braiding machines



March 25 1924. 1,488,032

J. E. CHACE SPOOL CARRIER FOR BRAIDING MACHINES Original Filed Dec. 24,1920 s Sheets-Sheet 1 avwamto'z 3 Sheets-Sheet 2 orlglnal Flled Dec 241920 J E CHACE SPOOL CARRIER FOR BRAIDING MACHINES Ell-T12.

March 25 1924.

March 25 1924. 1,488,032 J. E. CHACE SPOOL CARRIER FOR BBAIDING MACHINESOriginal Filed Dec. 24, 1920 3 Sheets-Sheet 3 mania.

i' i 9 1 E If Z7 25 wucwtoz Patented ar. 25, 1924.

ifiddig SPOOL CARRIER FOR BRAIIDING MACHINES.

Refiled for (abandoned) application Serial No. 432,918, filed December24, 1920. This application filed May 14, 1923.

To all whom it may concern:

Be it known that I, J OHN EDDY CHAOE, a citizen of the United States,residing at Adamsdale, in the county of Bristol and .State ofMassachusetts, have invented new and useful Improvements in SpoolCarriers for Braiding Machines, of which the following is aspecification.

This invention relates to certain new and useful improvements in spoolcarrier for braiding machines, and it has for its primary object toprovide an improved car-r rier embodying the entire letofl mechanismbelow the bobbin whereby all the weight, excepting that of the bobbinand its yarn, is brought down close to the operating mecha nism or tothe point to which said operating mechanism is applied for moving thecarrier on the bed of the braiding machine.

The invention further resides in an improved let-ofi' mechanism and themanner of mounting the same on a bobbin carrier for providing a betterbalanced structure.

Further, the invention is found to reside in the features ofconstruction and the arrangements and combinations of arts hereinafterdescribed and claimed, re erence being had to the accompanying drawingswherein,

carrier constructed in accordance with the present improvements;

Figure 2 is an end view thereof;

Figure 3 is an elevation of the opposite side of the carrier; furtherdepicting the invention and construction;

Figure 4; is a similar view of the opposite end of the carrier;

Figure 5 is a horizontal section below the bobbin on line 5-5 of Figure1; and

Figure 6 is a fragmentary vertical section about on line 66 of Figure 1further show- Figure 1 is a side elevation of a bobbin Serial No.639,011.

The body portion also is rovided with an enlargement at the base 0? thespindle, the same constituting a base which support the ratchet duringits rotary, intermittent movements. An arm 8 rises from this base 7alongside the ratchet and pivotally supports a pawl 9 designed to engagethe ratchet and prevent retrograde movement or unwinding of the bobbin.The pawl is urged to its operative position by means of a spring pressedplunger 10 bearing against the depending arm of the pawl, said armhaving its lower end deflected, as at 11, to form a stop engageable withthe base to limit the disengaging movement of the pawl.

Extending up alongside the bobbin is a thread-guiding standard 12 whichterminates at its upper end in an eye 18 through which the thread oryarn passes to the work being accomplished. Intermediate its ends, thestandard is formed with an inwardly and downwardly inclined slot leadingto a threading eye 14, and adjacent this eye a thread-guiding hook 15 isfixed to the standard. Slidable on the lower portion of the standard isthe tensioning device con sisting of the slide 16 bearing a pair ofupstanding hooks 17 and 18, arranged on opposite sides of the standard,and a transversely arranged incline or cam 19. The thread, in leavingthe bobbin passes through hooks 15 and 17, eye 14, hook 18 and eye 13,and as the yarn is used up, the tension on the same will cause the slide16 to rise bringing its cam 19 into contact with an over-hanging trip 20on the pawl 9 and, on continued movement of the tensioning device, liftthe pawl from engagement with its ratchet which action will result infreeing the bobbin and permit the latter to rotate to feed ofi' theyarn. As the supply of fed yarn approaches and exceeds the demand, thetensioning slide descends and the pawl again becomes operative, or inother words, arrests the unwinding movement of the bobbin. To place theslide under increasing tension as it moves upwardly, and to provide amore positive lowering action thereof, a spring pressed plunger 21 ismounted in the lower end of the spindle for pressing downwardly on alever 22 which is pivoted at one end to the base, as at 28, and has itsopposite end linked to a second lever 24;. This latter lever isfulcrumed on an outstanding arm 25 on the base and embodies a yokesection straddling the adjacent structure and its terminal slidablyengaged in a slot 26 of the slide 16. Obviously, as the slide is liftedthe lever 24 is also swung upwardly, carrying with it the linked lever22 and, in turn, the latter causes the plunger 21 to recede against theaction of its spring 27.

The construction is all arranged at the lower end of the spindle so thatthe weight is located beneath the bobbin to better bal ance the carrieras it moves across the bed of the machine. The operation is simple andpositive and the bobbin is readily accessible simply by removing thebobbin. No parts interfere'with. the removal of the bobbin since thelatter is supported well above the let-oil mechanism and in ell ectserves as a protecting cover or housing thereovcr.

This application is filed in substitution of my abandoned application ofDec. 24, 1920.

Having thus described my invention, what I claim as new and desire tosecure by Let- .ters Patent is:

1. In a bobbin carrier, at body having a spindle, a bobbin thereon,bobbin arresting means, a standard on the body having an upper eye and alower eye, a hook on the standard adjacent the lower eye, and a slide onthe standard below the hook and having a pair of hooks disposed onopposite sides of the standard, the thread from the bobbin passingthrough the standard hook, thence downwardly through one of the slidehooks, thence through the lower standard eye, thence downwardly andthrough the other slide eye and finally upwardly through the upperstandard eye.

2. A bobbin carrier comprising a body portion having an upstandingspindle thereon, a ratchet rotatable on the spindle and connectible witha bobbin when placed on the spindle, a vertically disposed bell-crankpawl pivoted to the body portion for engagement with the ratchet, aspring pressed plunger acting on the pawl to urge it to its operativeposition, and a tensioning device operable upon the tensioning of theyarn to disengage the pawl from the ratchet.

3. In a bobbin carrier, a body having a spindle thereon, a lever pivotedat one end to the body, means to tension the opposite end of the leverdownwardly, a second lever pivoted to the spindle and connected to thesaid opposite end of the first lever, a tensioning device looselyconnected to the second lever, and bobbin arresting means engaged by thesecond lever and rendered in operative thereby upon movement of thetensioning device from its normal position.

4:. In a bobbin carrier, a body having a spindle, a rotatable ratchet onthe spindle having upwardly facing teeth, a vertically disposedbell-crank lever pivoted to the body and having a horizontal pawl on its'hori zontal arm engaged with theratchet teeth, a horizontal springpressed plunger acting against the vertical arm of the bell-crank lever,and a tensioning device operable upon the tensioning of the yarn todisengage the pawl from'the ratchet.

5. I11 a bobbin carrier, a body having a spindle, a ratchet on thespindle, a pivoted pawl engageable with the ratchet and having asubstantially vertical arm, a spring pressed plunger acting against saidarm to hold the pawl engaged with the ratchet, a second substantiallyvertical arm on the pawl having a trip, and a slide having a part forengagement with the trip. 7 Y

6. A bobbin carrier comprising a body portion having an upstandingspindlethereon, a ratchet rotatable on the spindle at its base, a pawlpivoted on the body portion below a bobbin, when placed on the'spindle,to engage the ratchet and thereby hold the bobbin against unwinding, astandard extending up from the body portion and having an eye in itsupper end and a second eye intermediate its ends, a thread hook fixed tothe standard adjacent its second eye, a slide operable on the standardbelow said hook and having a pair of thread hooks arranged on theopposite sides of the standard, the thread of the bobbin passing throughthe first mentioned thread hook, through one of said slide hooks, thesecond eye, the other slide hook, and the first eye, and means carriedby the slide to disengage the pawl from the ratchet.

7. A bobbin carriercomprising a body portion having an upstandingspindle there on, a ratchet rotatable on the spindle at its base, a pawlpivoted onfthe body portion below the bobbin when placed on the spindleto engage theratchet and thereby hold the bobbin against unwinding, astandard extending up from the body portion andhaving an eye in itsupper end and a second eye intermediate its ends, a thread hook. fixedto the standard adjacent its second eye, a slide operable on thestandard below said hook and having apair of thread hooks arranged onopposite sides of the standard, and a cam part carried by the slide forengaging the pawl to disengage'it from the ratchet upon movement of theslide due to the tensioning of the thread;

8. A bobbin carrier comprising a body portion having an upstandingspindle thereon, a ratchet rotatable on the spindle at its base, apawl'pivoted on the body portion be low the bobbin when placed on thespindle to engage the ratchet and thereby hold the bobbin againstunwinding, a standard extending up from the bodyportion and having aneye in its upper end and a second eye intermediate its ends, a threadhook fixed to the standard adjacent its second" eye, a slide operable onthe standard below said hook and having a pair of thread hooks arrangedon opposite sides of the standard, a cam part carried by the slide, atrip cam arranged in the path of the cam part to effect disengagement ofthe pawl from the ratchet, and means for urging the slide to its normalposition.

9. A bobbin carrier comprising a body portion having an upstandingspindle thereon, a ratchet rotatable on the spindle at its base, a pawlpivoted on the body portion below the bobbin when placed on the spindleto engage the ratchet and thereby hold the bobbin against unwinding, astandard extending up from the body portion and having an eye in itsupper end and a second eye intermediate its ends, a thread hook fixed tothe standard adjacent its second eye, a slide operable on the standardbelow said hook and having a pair of thread hooks arranged on oppositesides of the standard, a cam part carried by the slide, a trip armarranged in the path of the cam partto effect disengagement of the pawlfrom the ratchet, a lever pivotally connected to the body portion andhaving one end loosely connected to the slide, and spring means forurging the lever and slide to their normal positions.

10. In a bobbin carrier, a body portion, a spindle thereon, a springpressed plunger arranged in the lower end of he spindle and actingdownwardly toward the body portion, a lever on which the plunger acts, asecond lever pivoted laterally of the spindle and connected to the firstlever so as to be tensioned downwardly thereby, a tensioning device towhich the second lever is connected for urging the device to its normalposition, and bobbin arresting means rendered inoperative upon movementof the tensioning device from its normal position.

11. In a bobbin carrier, a body having a spindle, a ratchet on thespindle, a substantially horizontal lever pivoted at one end to thebody, a second lever pivoted at one end I at a point adjacent to andabove the opposite end of the first lever, a slide, the opposite end ofthe second lever being loosely connected to the slide, a dependingconnection between an intermediate point on the second lever and saidopposite end of the first lever, means to tension the first lever, andthereby the second lever downwardly, and bobbin arresting means actuatedby the second lever to inoperative position.

12. In a bobbin carrier, a bobbin receiving spindle, bobbin arrestingmeans, a standard, a slide on the standard, means connected to the slideand being normally spaced from the bobbin arresting means to engage andrelease same upon movement of the slide, and means to tension saidsecond named means and to thereby tension the slide.

13. In a bobbin carrier, a bobbin receiving spindle, a rotatable ratcheton the spindle, a pawl engageable with the ratchet, a standard, a slideon the standard, and spring pressed means to engage the slide to tensionsame downwardly and being normally spaced from the pawl and beingmovable to engage and thereby release same from the ratchet.

14. In a bobbin carrier, a bobbin receiving spindle, a rotatableratchet. on the spindle, a pawl engageable with the ratchet, a standard,a slide on the standard, means to engage the slide and for operating thepawl to release same from the ratchet, and a spring pressed plunger inthe base of the spindle for engaging said first named means and fortensioning same.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOHN EDDY CHASE. Witnesses:

S. N. BARRY, J. A. MILLER.

